Commonly occurring product ions for PG(39:0/20:0) (View full structure)

m/zIon DescriptionStructure (click to enlarge)
1099.9251Precursor ion [M-H]-
1025.8883Loss of glycerol from precursor ion
805.6328Loss of sn2 acyl chain as ketene (RCH=C=O) from [M-H]-
787.6222Neutral loss of sn2 RCOOH group from [M-H]-
731.5960Loss of sn2 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
713.5855Neutral loss of sn2 RCOOH group and glycerol from [M-H]-
577.5929sn1 RCOO- ion
539.3355Loss of sn1 acyl chain as ketene (RCH=C=O) from [M-H]-
521.3249Neutral loss of sn1 RCOOH group from [M-H]-
465.2987Loss of sn1 acyl chain as ketene (RCH=C=O) and glycerol from [M-H]-
447.2881Neutral loss of sn1 RCOOH group and glycerol from [M-H]-
311.2956sn2 RCOO- ion
245.0432Glycerophosphoglycerol ion
227.0326Glycerophosphoglycerol ion -H2O
209.0221Glycerophosphoglycerol ion -2H2O
152.9958Glycerol-3-phosphate ion with loss of H2O
96.9696H2PO4- ion (from phosphate)
78.9591PO3- ion (from phosphate)
Note: Structures of product ions may represent one of a number of possible isobaric molecules in some cases